i am not sure you suppose to it是什么意思

上下文是这样的，A电话响了，B帮A接了，然后接完后A说了这句话
听错了，应该是 i am not sure you are suppose to it

I am not sure的用法有几种 I am not sure( )he will come or not i am not sure _____ he will com. I am not sure if he to the party This is the last thing I am not sure about. 11. I want to give a birthday party, but I am not sure _____. I am not sure whether two days___enough fot them to finish the work. I am not sure if it will be fine or cloudy?正确吗？ I am not sure what the play is about, but they will be singing Beetle songs. I am sure I do!是什么意思